# 忘

| 忘 | U+5FD8, &#24536; CJK UNIFIED IDEOGRAPH-5FD8 |
| ← 志 [U+5FD7] | CJK Unified Ideographs | 忙 → [U+5FD9] |

## Translingual
### Han character

忘 (Kangxi radical 61, 心+3, 7 strokes, cangjie input 卜女心 (YVP), four-corner 0033$_1$, composition ⿱亡心)

#### Derived characters

* 𱎱, 𢚚, 𰛹, 𰘘, 𫒥, 𠨛, 𫺴, 𪬳, 𡷢, 莣

#### References

* Kangxi Dictionary: page 376, character 24
* Dai Kanwa Jiten: character 10333
* Dae Jaweon: page 703, character 9
* Hanyu Da Zidian (first edition): volume 4, page 2270, character 9
* Unihan data for U+5FD8

## Chinese
### Glyph origin

Historical forms of the character 忘 :
| Warring States | Warring States | Shuowen Jiezi (compiled in Han) | Liushutong (compiled in Ming) |
| Bronze inscriptions | Chu slip and silk script | Small seal script | Transcribed ancient scripts |
| | Old Chinese |
| 忙 | *maːŋ |
| 芒 | *maːŋ, *maŋ |
| 茫 | *maːŋ |
| 恾 | *maːŋ |
| 吂 | *maːŋ, *maːŋs |
| 汒 | *maːŋ, *maŋs |
| 朚 | *maːŋ, *hmaːŋ, *maŋ, *mraːŋ, *mraːŋs |
| 邙 | *maːŋ, *maŋ |
| 杗 | *maːŋ, *maŋ |
| 荒 | *hmaːŋ, *hmaːŋs |
| 肓 | *hmaːŋ |
| 衁 | *hmaːŋ |
| 巟 | *hmaːŋ |
| 詤 | *hmaːŋ, *hmaːŋʔ, *hmaŋʔ |
| 慌 | *hmaːŋ, *hmaːŋʔ |
| 謊 | *hmaːŋʔ |
| 喪 | *smaːŋs, *smaːŋ |
| 亡 | *maŋ |
| 望 | *maŋ, *maŋs |
| 莣 | *maŋ |
| 朢 | *maŋ, *maŋs |
| 鋩 | *maŋ |
| 硭 | *maŋ |
| 忘 | *maŋ, *maŋs |
| 网 | *mlaŋʔ |
| 罔 | *mlaŋʔ |
| 蛧 | *maŋʔ |
| 網 | *mlaŋʔ |
| 輞 | *maŋʔ |
| 棢 | *maŋʔ |
| 惘 | *maŋʔ |
| 菵 | *maŋʔ |
| 誷 | *maŋʔ |
| 魍 | *maŋʔ |
| 妄 | *maŋs |
| 盲 | *mraːŋ |
| 蝱 | *mraːŋ |
| 虻 | *mraːŋ |
| 氓 | *mraːŋ |
| 甿 | *mraːŋ |
Phono-semantic compound (形聲 / 形声, OC *maŋ, *maŋs) and ideogrammic compound (會意 / 会意) : phonetic 亡 (OC *maŋ, “to lose, disappear, flee”) + semantic 心 (“heart”). Doublet of 忙 (OC *maːŋ).

### Etymology

From Proto-Sino-Tibetan *ma (“not”). Originally the same word as 亡 (OC *maŋ, “to lose, disappear, flee”) as suggested by Shijing rimes, but it was later suffixed with a perfective suffix *-s (or *-h), literally "it has disappeared (from mind)" (Schuessler, 2007).

### Pronunciation

* Mandarin
    (Standard)
       (Pinyin): wàng, wáng
       (Zhuyin): ㄨㄤˋ, ㄨㄤˊ
    (Chengdu, Sichuanese Pinyin): wang$^4$
    (Dungan, Cyrillic and Wiktionary): вон (von, III)
* Cantonese
    (Guangzhou–Hong Kong, Jyutping): mong$^4$
    (Taishan, Wiktionary): mong$^3$
* Gan (Wiktionary): mong$^4$ / mong$^5$ / uong$^4$ / uong$^5$
* Hakka (Sixian, PFS): mong
* Jin (Wiktionary): von$^3$
* Northern Min (KCR): uǎng
* Eastern Min (BUC): uòng
* Southern Min
    (Hokkien, POJ): bōng / bông
    (Teochew, Peng'im): bhuang$^5$
* Wu (Shanghai, Wugniu): $^6$maon; $^6$vaon; $^6$waon
* Xiang (Changsha, Wiktionary): uan$^2$
* Mandarin
** (Standard Chinese, standard in Mainland and Taiwan)
*** Hanyu Pinyin: wàng
*** Zhuyin: ㄨㄤˋ
*** Tongyong Pinyin: wàng
*** Wade–Giles: wang$^4$
*** Yale: wàng
*** Gwoyeu Romatzyh: wanq
*** Palladius: ван (van)
*** Sinological IPA : /wɑŋ⁵¹/
** (Standard Chinese, literary variant)
*** Hanyu Pinyin: wáng
*** Zhuyin: ㄨㄤˊ
*** Tongyong Pinyin: wáng
*** Wade–Giles: wang$^2$
*** Yale: wáng
*** Gwoyeu Romatzyh: wang
*** Palladius: ван (van)
*** Sinological IPA : /wɑŋ³⁵/
** (Chengdu)
*** Sichuanese Pinyin: wang$^4$
*** Scuanxua Ladinxua Xin Wenz: uong
*** Sinological IPA : /uaŋ²¹³/
** (Dungan)
*** Cyrillic and Wiktionary: вон (von, III)
*** Sinological IPA : /vɑŋ⁴⁴/
    (Note: Dungan pronunciation is currently experimental and may be inaccurate.)
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: mong$^4$
*** Yale: mòhng
*** Cantonese Pinyin: mong$^4$
*** Guangdong Romanization: mong$^4$
*** Sinological IPA : /mɔːŋ²¹/
** (Taishanese, Taicheng)
*** Wiktionary: mong$^3$
*** Sinological IPA : /ᵐbɔŋ²²/
* Gan
** (Nanchang)
*** Wiktionary: mong$^4$ / mong$^5$ / uong$^4$ / uong$^5$
*** Sinological IPA : /mɔŋ³⁵/, /mɔŋ¹¹/, /uɔŋ³⁵/, /uɔŋ¹¹/
* mong4, mong5 - vernacular;
* uong4, uong5 - literary.
* Dialectal data
| Variety | Location | edit忘 |
| Mandarin | Beijing | /uɑŋ⁵¹/ |
| Mandarin | Harbin | /uaŋ⁵³/ |
| Mandarin | Tianjin | /vɑŋ⁵³/ |
| Mandarin | Jinan | /vaŋ²¹/ |
| Mandarin | Qingdao | /vaŋ⁴²/ |
| Mandarin | Zhengzhou | /uaŋ³¹²/ |
| Mandarin | Xi'an | /uaŋ⁴⁴/ |
| Mandarin | Xining | /uɔ̃²¹³/ |
| Mandarin | Yinchuan | /vɑŋ¹³/ |
| Mandarin | Lanzhou | /vɑ̃¹³/ |
| Mandarin | Ürümqi | /vɑŋ²¹³/ |
| Mandarin | Wuhan | /uaŋ²¹³/ /uaŋ³⁵/ |
| Mandarin | Chengdu | /uaŋ¹³/ |
| Mandarin | Guiyang | /uaŋ²¹³/ |
| Mandarin | Kunming | /uã̠²¹²/ |
| Mandarin | Nanjing | /uaŋ⁴⁴/ |
| Mandarin | Hefei | /uɑ̃⁵³/ |
| Jin | Taiyuan | /vɒ̃⁴⁵/ |
| Jin | Pingyao | /uɑŋ³⁵/ /uə³⁵/ ～下了 |
| Jin | Hohhot | /vɑ̃⁵⁵/ |
| Wu | Shanghai | /mɑ̃²³/ /huɑ̃²³/ |
| Wu | Suzhou | /mɑ̃³¹/ |
| Wu | Hangzhou | /mɑŋ¹³/ /vɑŋ¹³/ |
| Wu | Wenzhou | /ɦuɔ³¹/ /muɔ³¹/ /maŋ³¹/ |
| Hui | Shexian | /o²²/ /mɔ²²/ |
| Hui | Tunxi | /mau¹¹/ |
| Xiang | Changsha | /uan¹³/ |
| Xiang | Xiangtan | /uɔn¹²/ |
| Gan | Nanchang | /mɔŋ²¹/ ～記 /uɔŋ²¹/ ～性大 |
| Hakka | Meixian | /moŋ¹¹/ |
| Hakka | Taoyuan | /moŋ¹¹/ |
| Cantonese | Guangzhou | /mɔŋ²¹/ |
| Cantonese | Nanning | /mɔŋ²¹/ /mɔŋ²²/ |
| Cantonese | Hong Kong | /mɔŋ²¹/ |
| Min | Xiamen (Hokkien) | /bɔŋ²²/ |
| Min | Fuzhou (Eastern Min) | /uɔŋ²⁴²/ |
| Min | Jian'ou (Northern Min) | /uaŋ²¹/ |
| Min | Shantou (Teochew) | /buaŋ⁵⁵/ |
| Min | Haikou (Hainanese) | /vaŋ³¹/ |
* Middle Chinese: mjangH
Rime :
| Character | 忘 |
| Reading # | 1/1 |
| Initial (聲) | 明 (4) |
| Final (韻) | 陽 (106) |
| Tone (調) | Departing (H) |
| Openness (開合) | Closed |
| Division (等) | III |
| Fanqie | 巫放切 |
| Baxter | mjangH |
| Reconstructions ||
| Zhengzhang Shangfang | /mʉɐŋ$^H$/ |
| Pan Wuyun | /mʷiɐŋ$^H$/ |
| Shao Rongfen | /miuɑŋ$^H$/ |
| Edwin Pulleyblank | /muaŋ$^H$/ |
| Li Rong | /miuaŋ$^H$/ |
| Wang Li | /mĭwaŋ$^H$/ |
| Bernhard Karlgren | /miwaŋ$^H$/ |
| Expected Mandarin Reflex | wàng |
| Expected Cantonese Reflex | mong$^6$ |
* Old Chinese
    (Baxter–Sagart): /*maŋ/, /*maŋ-s/
    (Zhengzhang): /*maŋ/, /*maŋs/
Baxter–Sagart system 1.1 (2014) :
| Character | 忘 | 忘 |
| Reading # | 1/2 | 2/2 |
| Modern Beijing (Pinyin) | wáng | wàng |
| Middle Chinese | ‹ mjang › | ‹ mjang$^H$ › |
| Old Chinese | /*maŋ/ | /*maŋ-s/ |
| English | forget | forget |
| Notes for Old Chinese notations in the Baxter–Sagart system: * Parentheses "" indicate uncertain presence; * Square brackets "" indicate uncertain identity, e.g. *[t] as coda may in fact be *-t or *-p; * Angle brackets "<>" indicate infix; * Hyphen "-" indicates morpheme boundary; * Period "." indicates syllable boundary. |||
Zhengzhang system (2003) :
| Character | 忘 | 忘 |
| Reading # | 1/2 | 2/2 |
| No. | 12672 | 12683 |
| Phonetic component | 亡 | 亡 |
| Rime group | 陽 | 陽 |
| Rime subdivision | 0 | 0 |
| Corresponding MC rime | 亡 | 妄 |
| Old Chinese | /*maŋ/ | /*maŋs/ |

### Definitions

忘
* to forget
* to neglect
* to miss; to omit

#### Synonyms

| Variety | Location | Words |
| Classical Chinese | Classical Chinese | 忘, 忽忘 |
| Formal (Written Standard Chinese) | Formal (Written Standard Chinese) | 忘, 忘記, 忘掉, 忘卻, 忘懷, 遺忘 |
| Northeastern Mandarin | Beijing | 忘 |
| Northeastern Mandarin | Taiwan | 忘 |
| Northeastern Mandarin | Harbin | 忘 |
| Northeastern Mandarin | Shenyang | 忘 |
| Northeastern Mandarin | Singapore | 忘記 |
| Jilu Mandarin | Jinan | 忘 |
| Jiaoliao Mandarin | Yantai (Muping) | 忘 |
| Central Plains Mandarin | Luoyang | 忘 |
| Central Plains Mandarin | Wanrong | 忘 |
| Central Plains Mandarin | Xi'an | 忘 |
| Central Plains Mandarin | Xining | 忘掉, 忘下 |
| Central Plains Mandarin | Xuzhou | 忘, 忘記 |
| Lanyin Mandarin | Yinchuan | 忘, 忘記 |
| Lanyin Mandarin | Lanzhou | 忘掉 |
| Lanyin Mandarin | Ürümqi | 忘掉 |
| Southwestern Mandarin | Chengdu | 忘, 忘記, 記不倒 |
| Southwestern Mandarin | Wuhan | 忘記 |
| Southwestern Mandarin | Guiyang | 忘, 忘記 |
| Southwestern Mandarin | Kunming | 忘記 |
| Southwestern Mandarin | Guilin | 忘記 |
| Southwestern Mandarin | Liuzhou | 忘記, 打忘記 |
| Jianghuai Mandarin | Nanjing | 記不得, 忘記, 忘得 |
| Jianghuai Mandarin | Yangzhou | 忘記, 記不得 |
| Jianghuai Mandarin | Hefei | 忘記, 忘失 |
| Cantonese | Guangzhou | 唔記得, 忘記 |
| Cantonese | Hong Kong | 唔記得 |
| Cantonese | Hong Kong (San Tin; Weitou) | 唔記得 |
| Cantonese | Hong Kong (Kam Tin; Weitou) | 唔記得 |
| Cantonese | Hong Kong (Ting Kok) | 忘記 |
| Cantonese | Hong Kong (Tung Ping Chau) | 忘記 |
| Cantonese | Macau | 落記, 唔記得 |
| Cantonese | Guangzhou (Panyu) | 唔記得 |
| Cantonese | Guangzhou (Huashan, Huadu) | 唔記得 |
| Cantonese | Guangzhou (Conghua) | 唔記得 |
| Cantonese | Guangzhou (Zengcheng) | 唔記得 |
| Cantonese | Foshan | 唔記得 |
| Cantonese | Foshan (Shatou, Nanhai) | 唔記得 |
| Cantonese | Foshan (Shunde) | 落記 |
| Cantonese | Foshan (Sanshui) | 唔記得 |
| Cantonese | Foshan (Mingcheng, Gaoming) | 唔記得 |
| Cantonese | Zhongshan (Shiqi) | 落記 |
| Cantonese | Zhuhai (Qianshan, Xiangzhou) | 唔記得 |
| Cantonese | Zhuhai (Shangheng, Doumen; Tanka) | 唔記得 |
| Cantonese | Zhuhai (Doumen) | 唔記得 |
| Cantonese | Jiangmen (Baisha) | 唔記得 |
| Cantonese | Jiangmen (Xinhui) | 唔記得 |
| Cantonese | Taishan | 唔記得 |
| Cantonese | Kaiping (Chikan) | 唔記得 |
| Cantonese | Enping (Niujiang) | 唔記緊 |
| Cantonese | Heshan (Yayao) | 唔記得 |
| Cantonese | Dongguan | 唔記得 |
| Cantonese | Shenzhen (Shajing, Bao'an) | 唔記得 |
| Cantonese | Shaoguan | 唔記得 |
| Cantonese | Yunfu | 唔記得 |
| Cantonese | Yangjiang | 無記得 |
| Cantonese | Xinyi | 冇記得 |
| Cantonese | Lianjiang | 冇記得 |
| Cantonese | Nanning | 忘記, 打忘記 |
| Cantonese | Wuzhou | 打忘記, 唔記得 |
| Cantonese | Yulin | 忘記 |
| Cantonese | Hepu (Lianzhou) | 忘記, 冇記倒 |
| Cantonese | Kuala Lumpur (Guangfu) | 唔記得 |
| Cantonese | Singapore (Guangfu) | 唔記得, 忘記 |
| Gan | Nanchang | 忘記, 不記得 |
| Hakka | Meixian | 添忘, 添放, 唔記得 |
| Hakka | Xingning | 添忘 |
| Hakka | Huizhou (Huicheng; Bendihua) | 忘記 |
| Hakka | Huidong (Daling) | 添忘 |
| Hakka | Dongguan (Qingxi) | 添放, 唔記得 |
| Hakka | Shenzhen (Shatoujiao) | 添放, 唔記得 |
| Hakka | Zhongshan (Nanlang Heshui) | 唔記得 |
| Hakka | Shaoguan (Qujiang) | 忘記 |
| Hakka | Lianshan (Xiaosanjiang) | 忘記 |
| Hakka | Guangzhou (Lütian, Conghua) | 忘記 |
| Hakka | Changting | 添放, 添忘 |
| Hakka | Wuping | 添放 |
| Hakka | Wuping (Pingyu) | 添放 |
| Hakka | Liancheng | 添放 |
| Hakka | Ninghua | 拿撇掉 |
| Hakka | Yudu | 記忘 |
| Hakka | Ruijin | 唔記得, 來記掉 |
| Hakka | Shicheng | 來記 |
| Hakka | Shangyou (Shexi) | 來忘 |
| Hakka | Miaoli (N. Sixian) | 唔記得, 添放 |
| Hakka | Pingtung (Neipu; S. Sixian) | 唔記得, 添放 |
| Hakka | Hsinchu County (Zhudong; Hailu) | 唔記得 |
| Hakka | Taichung (Dongshi; Dabu) | 唔記得 |
| Hakka | Hsinchu County (Qionglin; Raoping) | 唔記得 |
| Hakka | Yunlin (Lunbei; Zhao'an) | 唔記得, 添放 |
| Hakka | Hong Kong | 添忘 |
| Hakka | Luchuan (Daqiao) | 忘記 |
| Hakka | Sabah (Longchuan) | 忘記, 唔記得 |
| Hakka | Senai (Huiyang) | 忘記 |
| Hakka | Singkawang | 唔記得 |
| Huizhou | Jixi | 忘記 |
| Jin | Taiyuan | 忘, 忘記 |
| Jin | Xinzhou | 忘記 |
| Northern Min | Jian'ou | 撈暴, 𣍐記得 |
| Eastern Min | Fuzhou | 𣍐記 |
| Eastern Min | Fuqing | 𣍐記 |
| Eastern Min | Gutian | 𣍐記 |
| Eastern Min | Fu'an | 𣍐記 |
| Eastern Min | Ningde | 𣍐記 |
| Eastern Min | Shouning | 𣍐記 |
| Eastern Min | Zhouning | 𣍐記 |
| Eastern Min | Fuding | 𣍐記 |
| Eastern Min | Matsu | 𣍐記 |
| Southern Min | Xiamen | 𣍐記得, 𣍐記 |
| Southern Min | Quanzhou | 𣍐記得, 𣍐記 |
| Southern Min | Anxi | 𣍐記 |
| Southern Min | Zhangzhou | 𣍐記 |
| Southern Min | Pinghe | 𣍐記 |
| Southern Min | Zhao'an | 𣍐記得 |
| Southern Min | Kaohsiung (Dalinpu, Siaogang) | 𣍐記得 |
| Southern Min | Changhua (Yongjing) | 𣍐記得 |
| Southern Min | Tainan | 𣍐記得 |
| Southern Min | Tainan (Anping) | 𣍐記得 |
| Southern Min | Penang (Hokkien) | 𣍐記 |
| Southern Min | Singapore (Hokkien) | 𣍐記 |
| Southern Min | Manila (Hokkien) | 𣍐記得 |
| Southern Min | Chaozhou | 唔記得, 忘記 |
| Southern Min | Shantou | 唔記得, 忘記 |
| Southern Min | Shantou (Chaoyang) | 唔記得 |
| Southern Min | Johor Bahru (Teochew) | 唔記得 |
| Southern Min | Singapore (Teochew) | 𣍐記 |
| Southern Min | Leizhou | 無記著 |
| Southern Min | Haikou | 無記著, 無憶著 |
| Puxian Min | Putian | 𣍐記 |
| Puxian Min | Xianyou | 𣍐記 |
| Zhongshan Min | Zhongshan (Longdu, Shaxi) | 唔記得 |
| Southern Pinghua | Nanning (Tingzi) | 打忘記 |
| Northern Pinghua | Guilin (Dahe) | 忘記 |
| Wu | Shanghai | 忘記 |
| Wu | Shanghai (Chongming) | 忘記 |
| Wu | Suzhou | 忘記 |
| Wu | Danyang | 忘記, 忘煞 |
| Wu | Hangzhou | 忘記 |
| Wu | Wenzhou | 慲記 |
| Wu | Jinhua | 忘記 |
| Xiang | Changsha | 不記得, 忘記 |
| Xiang | Shuangfeng | 不記得, 忘記 |
| Xiang | Quanzhou | 忘記 |

### Compounds

* 一字不忘
* 不忘本
* 不忘溝壑 / 不忘沟壑
* 丟三忘四 / 丢三忘四
* 健忘 (jiànwàng)
* 健忘症 (jiànwàngzhèng)
* 備忘錄 / 备忘录 (bèiwànglù)
* 公爾忘私 / 公尔忘私
* 公而忘私
* 公耳忘私
* 勿忘草 (wùwàngcǎo)
* 國爾忘家 / 国尔忘家
* 坐忘
* 太上忘情
* 好利忘義 / 好利忘义 (hàolì wàng yì)
* 安不忘危 (ānbùwàngwēi)
* 廢寢忘食 / 废寝忘食 (fèiqǐnwàngshí)
* 廢寢忘餐 / 废寝忘餐
* 廢食忘寢 / 废食忘寝
* 徇公忘己
* 徇國忘家 / 徇国忘家
* 徇國忘己 / 徇国忘己
* 徇國忘身 / 徇国忘身
* 徙宅忘妻
* 得意忘形 (déyìwàngxíng)
* 得意忘言
* 得意忘象
* 得新忘舊 / 得新忘旧
* 得魚忘筌 / 得鱼忘筌
* 心身俱忘
* 忘八
* 忘八羔子
* 忘其所以
* 忘卻 / 忘却 (wàngquè)
* 忘寢廢食 / 忘寝废食
* 忘年 (wàngnián)
* 忘年之交 (wàngniánzhījiāo)
* 忘年之契
* 忘年之好
* 忘年交 (wàngniánjiāo)
* 忘形 (wàngxíng)
* 忘形之交
* 忘形之契
* 忘形交
* 忘性 (wàngxìng)
* 忘恩 (wàng'ēn)
* 忘恩失義 / 忘恩失义
* 忘恩背義 / 忘恩背义
* 忘恩負義 / 忘恩负义 (wàng'ēnfùyì)
* 忘情 (wàngqíng)
* 忘憂 / 忘忧 (wàngyōu)
* 忘憂物 / 忘忧物
* 忘憂草 / 忘忧草 (wàngyōucǎo)
* 忘懷 / 忘怀 (wànghuái)
* 忘我 (wàngwǒ)
* 忘戰必危 / 忘战必危
* 忘戰者危 / 忘战者危
* 忘掉 (wàngdiào)
* 忘本 (wàngběn)
* 忘機 / 忘机
* 忘生捨死 / 忘生舍死
* 忘舊 / 忘旧
* 忘言
* 忘記 / 忘记 (wàngjì)
* 忘象得意
* 忘食 (wàngshí)
* 忘餐失寢 / 忘餐失寝
* 忘餐廢寢 / 忘餐废寝
* 忘魂
* 念念不忘 (niànniànbùwàng)
* 憂公忘私 / 忧公忘私
* 憂國忘家 / 忧国忘家
* 憂國忘私 / 忧国忘私
* 憂國忘身 / 忧国忘身
* 戀新忘舊 / 恋新忘旧
* 捨死忘生 / 舍死忘生 (shěsǐwàngshēng)
* 捨生忘死 / 舍生忘死 (shěshēngwàngsǐ)
* 數典忘祖 / 数典忘祖 (shǔdiǎnwàngzǔ)
* 日旰忘食
* 日昃忘食
* 明忘八
* 時刻不忘 / 时刻不忘
* 柯爛忘歸 / 柯烂忘归
* 樂以忘憂 / 乐以忘忧
* 樂極忘形 / 乐极忘形
* 樂而忘憂 / 乐而忘忧
* 樂而忘歸 / 乐而忘归
* 樂而忘返 / 乐而忘返
* 殉義忘生 / 殉义忘生
* 殉義忘身 / 殉义忘身
* 毋忘在莒 (wúwàngzàijǔ)
* 每飯不忘 / 每饭不忘
* 永生難忘 / 永生难忘
* 永誌不忘 / 永志不忘 (yǒngzhìbùwàng)
* 沒世不忘 / 没世不忘
* 沒世難忘 / 没世难忘
* 沒身不忘 / 没身不忘
* 沒齒不忘 / 没齿不忘
* 沒齒難忘 / 没齿难忘 (mòchǐnánwàng)
* 流宕忘反
* 流蕩忘反 / 流荡忘反
* 流連忘返 / 流连忘返 (liúliánwàngfǎn)
* 消日忘年
* 淡忘 (dànwàng)
* 渾然忘我 / 浑然忘我
* 理不忘亂 / 理不忘乱
* 留連忘返 / 留连忘返
* 畢生難忘 / 毕生难忘 (bìshēngnánwàng)
* 痿不忘起
* 瘡好忘痛 / 疮好忘痛
* 發憤忘食 / 发愤忘食 (fāfènwàngshí)
* 盛不忘衰
* 知安忘危
* 老忘渾 / 老忘浑
* 老混忘
* 聞韶忘味 / 闻韶忘味
* 背信忘義 / 背信忘义
* 背恩忘義 / 背恩忘义
* 蓍簪不忘
* 見利忘義 / 见利忘义 (jiànlìwàngyì)
* 見色忘友 / 见色忘友
* 誌之不忘 / 志之不忘
* 負義忘恩 / 负义忘恩
* 貴人多忘 / 贵人多忘
* 過目不忘 / 过目不忘 (guòmùbùwàng)
* 遺忘 / 遗忘 (yíwàng)
* 遺忘症 / 遗忘症
* 難忘 / 难忘 (nánwàng)
* 鷗鳥忘機 / 鸥鸟忘机
* 鷗鷺忘機 / 鸥鹭忘机

### References

* Dictionary of Chinese Character Variants (教育部異體字字典), A01309
* “忘”, in 漢語多功能字庫 (Multi-function Chinese Character Database)‎, 香港中文大學 (the Chinese University of Hong Kong), 2014–

## Japanese
### Kanji

(Sixth grade kyōiku kanji)
* forget

#### Readings

* Go-on: もう (mō)
* Kan-on: ぼう (bō, Jōyō)
* Kun: わすれる (wasureru, 忘れる, Jōyō)

#### Compounds

* 忘(ぼう)年(ねん)会(かい) (bōnenkai)
* 忘(ぼう)却(きゃく) (bōkyaku)
* 健(けん)忘(ぼう)症(しょう) (kenbōshō)
* 備(び)忘(ぼう) (bibō)
* 忘(ぼう)我(が) (bōga)

## Korean
### Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “Middle Korean readings, if any”)

### Pronunciation

* (SK Standard/Seoul) IPA: [ma̠ŋ]
* Phonetic hangul: [망]

### Hanja

Wikisource 忘 (eumhun 잊을 망 (ijeul mang))
* hanja form of 망 (“forget”)
* hanja form of 망 (“neglect”)
* hanja form of 망 (“miss, omit”)

## Vietnamese
### Han character

忘: Hán Nôm readings: vong

### Compound part

忘
chữ Hán form of vong (“(only in compounds) to forget”).